@charset"UTF-8";
$fontSize:40;
@function r($p){
    @return $p/$fontSize*1rem;
}
html,body{
    font-size: 40px;
    height: 100%;
    width: 100%;
    >.web{
        height: 100%;
        width: 100%;
        position: relative;
        >img{
            width: 100%;
            height: 100%;
        }
        >a{
           >button{
                width:52%;
                position: absolute;   
                bottom: r(33);
                left: 50%;
                transform: translateX(-50%);
                >img{
                   width: 100%;
                }
            }
        }
    }
}
